Physics, 31.07.2019 23:00 gevaughn600

Achild bounces a 56 g superball on the sidewalk. the velocity change of the superball is from 20 m/s downward to 13 m/s upward. if the contact time with the sidewalk is 1 800 s, what is the magnitude of the average force exerted on the superball by the sidewalk? answer in units of n.

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Achild bounces a 56 g superball on the sidewalk. the velocity change of the superball is from 20 m/s...

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